Sash-fastener.



No. 652,782. Patented" Jilly 3, I900. s. J. JOHNSTON. SASH FASTENER.

(Appl cat on filed Sept 1 1899) (No Model.)

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NITED STATES PATENT QFFICEQ SAMUEL J. JOHNSTON, LEESBURG, VIRGINIA. A

SPECIFICATTON'fQrming part of eas I atent no, 652,782, dateo aui s, 1 00; Application filed September 1, 1899. Serial No. 729,203., model.)

To all whom it mag concern:

Be it known that I, SAMUEL J. JOHNSTON, a citizen of the United States, residing at Leesburg, in the county of-Loudoun and State of Virginia, have invented a new and useful Sash-Fastener, of which the following is a specification.

This invention relates to sash-fasteners or sash-locks which are associated with a sliding sash and window-frame to provide means for locking the sash against movement in either direction at any desired point.

The object of the invention is to provide a simple, cheap, easily-manipulated, and reliable device of this character having positive means for securely locking the sash against movement either upward or down ward after having been raised or lowered to the desired position.

With this end inlview the invention primarily contemplates a sash-fastener having a minimum number of operating parts which are so constructedand arranged as to occupy little space and at the same time can be readily fitted to any Window without marring or defacing the same. i

A further object of the invention is to con struct the fastener in such a way as to permit of its easy manipulation,while atthe same time providing an effective lock that will always be reliablein action and cannot become easily disarrangcd.

With these and other objects in view, which will more readily appear as the nature of the invention is better understood, the sam'e'con-' sists in the novel construct-ion, combination,

and arrangement of; parts hereinafter more fully described, illustrated, and claimed.

The essential features'of the invention'are,

necessarily susceptible to some modifications without departing from the spirit or scope thereof, but the preferred embodiment of the improvements is shown in the accompanying drawings, in which Figure 1 is a perspective view of 'a portion of a window-frame and its sash equipped with the sash fastener or look embodying the improvements contemplated by the present invention; 'Fig. 2 is a detail in perspective of the lock'proper removed from the windowframe. Fig. 3 is a longitudinal sectional view of the construction shown in Fig.

this look are held Within a bracket 6;

2. Fig-'4 is a detail in perspective of the dock-wheel; comprising the revoluble pinion an'd'bolt-engaged disk.

window frame,and while the rack could be applied to the window-fr'amefand the lock to the sash, and vice versa, still in the preferred application of the invention it'has been found most practicable to apply the rack or rack-bar to one of the stiles of the sliding sash, so that the lock proper will always be in a fixed position convenient for manipulation irrespective of the elevation of the sash.

Referringparticularly to thedrawings, the numeral '1 designates a straight rack-bar provided with a plurality ofperforated ears 2, arranged at suitable points and adapted to receive screws or equivalent fasteners 3 for securing the rack-bar to one of the stiles of the sliding sash 4contiguous to one of the sides or stiles of the window-frame. The said rack-bar 1 preferably extends the full width of the sash to which it is fitted, so that the latter may be held locked at any point to Which it is capable of being raised or lowered, and associated with' this rack-bar is the lock proper, which is'supported on" the side of the window-frame adjacent to the stile of the sash to which the rack-baris fitted.

- Referring inore particula'rl y to the lock proper of the device, thefworking'jparts of g This bracket 6 is formed with a securing-plate having terminal ears? 7, receiving screws 8 or equivalentfasteners'for holding the bracket ftothe Window frame,"and the said bracket also has ofi'set therefrom an open frame 9, within which is loosely mounted the revolu- The spindle or axle exble lock-Wheel 10. v tremities 12 of this lock-wheel'are journalcd in opposite sides of the bracket 6'to provide for permitting the wheel tofreely rot ate witl1- in the open frame ofthe bracket and also project out of the frame, so as to engage with the teeth of the rack-bar 1.

The revoluble lock-wheel essentially comprises a pinion 13 and a bolt-engaged disk 14, projected from one side thereof, preferably in the form of an integralhub extension, and the said pinion 13 of the wheel, as well as the rack-bar 1, are sufficiently wide to maintain a proper mesh, so as to insure the easy raising and lowering of the sash. The bolt-engaged disk 14, offset from one side of the pinion 13, is provided in the periphery thereof with a plurality of sockets or notches 15, adapted to receive therein one end of the sliding lock-bolt 16. The sliding lock-bolt 16 re ciprocates in a plane entirely at one side of the pinion 13 of the lock-wheel, while the stem of said bolt 16 works through a casing 17, formed at one end of the bracket 6, and below which casing the lower end of the boltstem has fitted thereto a finger-plate 18, which is of a sufiicient size to be readily grasped between the thumb and first finger to provide for the retraction of the bolt from the socket 15 with which it may be engaged.

To provide for the normal engagement of the slidingbolt 16 with one of the notches 15, a spring 19 is housed within the casing 17 and is arranged to exert an upward pressure against the bolt 16 to secure the desired result.

In the use of the fastener to provide for raising or lowering the sash to any desired point it is simply necessary to grasp the finger-plate 1S and retract the bolt from the notch of the disk 14, so as to release the lockwheel and permit it to freely rotate as the sash is moved up or down, and when the sash has about-reached the desired point the finger-pressure on the sliding bolt may be relieved, so that the upper end thereof will ride on the periphery of the disk 14 and automatically spring into engagement with the next socket or notch 15. Then the bolt is thus engaged with the socket or notch 15, the lockwheel is held against rotation, so as to positively lock the sash against movement in either direction.

By reference to Fig. 3 of the drawings it will be seen that I have provided a novel form of casing for inclosing the spring of the slidable bolt and for supporting the revoluble pinion and lock-wheel in a manner to.

expose the latter, so that it may engage with the rack and also present the notched disk bottom with openings of different sizes, the

top opening being square in shape. The slidable bolt is also square, so as to fit in and be guided by the square opening of the boxing, and this plate has the reduced stem, which is extended through the opening in the bottom of the boxing. The coiled spring 19 is housed entirelywithin the boxing, so as to be protected thereby against injury and an accumulation of dust, one end of said spring being seated against a collar or washer on the bolt, while its opposite end bears upon the bottom of the boxing.

One of the important features of my invention is the employment of an angular plate as the finger-piece 18, said plate being made fast, with the lower extremity of the stem forming a part of the bolt. The inner straight edge of this plate engages with the lower part of the vertical plate 7, so as to slide against the same in the vertical travel of. the bolt, while the other edge of the plate is extended or prolonged beyond the vertical bracket, thus exposing the plate always to access for the operator to press against the same in retracting the latch from engagement with the lock-wheel preliminary to raising or lowering the sash. It is apparent that the slidable locking element of my sash-fastener is guided at two points-first by the angular bolt sliding in the corresponding opening of the boxing and by the finger-plate riding against the vertical plate of the casing, whereby any tendency of the bolt to turn under pressure of the finger applied against a corner of the plate is wholly overcome.

Having thus described the invention, what is claimed as new is In a sash-fastener, a casing comprising a vertical plate, 7, a closed boxing, 17, having openings in the top and bottom, and an open bracket, 9, integral with the plate and said boxing, a slidable angular bolt, 16, having a stem and fitted slidably in the boxing, a spring bearing against a shoulder of the bolt and housed within the boxing, and an angular finger-plate, 18, fast with the stem, below the boxing, and arranged for its inner edge to ride against the plate and for its outer edge to project beyond the vertical plane of the boxing, combined with a rack, and a revoluble lock-wheel and pinion journaled in the bracket and plate for its notched disk to lie in the path of said bolt, substantially as described.

In testimony that I claim the-foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

SAMUEL J. JOHNSTON.

W'itnesses:

JOHN H. SIGGERS, NELLIE VAN METRE. 

